Tags

phauly's library 48 articles

 
 

Stimulating social engagement in a community network

  [CiTO]
In CSCW '02: Proceedings of the 2002 ACM conference on Computer supported cooperative work (2002), pp. 306-313, doi:10.1145/587078.587121
posted to no-tag by phauly  on 2009-08-06 09:14:17 ** along with 13 people and 5 groups allenw cnolet conrodi dartar jryall justaubrey juutela karimlakhani loua luise ramonovelar spinster wcrosbie CHISEL CoP_CMS Sonet at FBK what_is_a_library Wikipedia

Abstract

One of the most challenging problems facing builders and facilitators of community networks is to create and sustain social engagement among members. In this paper, we investigate the drivers of social engagement in a community network through the analysis of three data sources: activity logs, a member survey, and the content analysis of the conversation archives. We describe three important ways to encourage and support social engagement in online communities: through system design elements such as conversation channeling and event notification, ...

 

De-anonymizing Social Networks

  [CiTO]
(19 Mar 2009)
posted to anonimity network social sonet by phauly  on 2009-06-05 21:58:03 ** along with 10 people and 1 group aviv dullhunk imrchen jobadge makrehchi mrkoeppen mystickahuna powerwolf s3n3ca seeding-films Sonet at FBK

Abstract

Operators of online social networks are increasingly sharing potentially sensitive information about users and their relationships with advertisers, application developers, and data-mining researchers. Privacy is typically protected by anonymization, i.e., removing names, addresses, etc. We present a framework for analyzing privacy and anonymity in social networks and develop a new re-identification algorithm targeting anonymized social-network graphs. To demonstrate its effectiveness on real-world networks, we show that a third of the users who can be verified to have accounts on both Twitter, a popular microblogging service, and Flickr, an online ...

 

Eight Friends are Enough: Social Graph Approximation via Public Listings

  [CiTO]
In Proceedings of Second ACM Workshop on Social Network Systems (March 2009)
posted to sonet by phauly  on 2009-06-05 21:57:35 ** along with 2 people and 1 group dylanwalker theshadowhost Sonet at FBK
 

Measurement and analysis of online social networks

  [CiTO]
In Proceedings of the 7th ACM SIGCOMM conference on Internet measurement (2007), pp. 29-42, doi:10.1145/1298306.1298311
posted to flickr network orkut social by phauly  on 2009-05-28 23:42:40 ***** along with 55 people and 4 groups 07111013 A_Olympia abellogin agulli AJCann ajuergens arasbm bbzpda beefer cimbrone dartar deannamascle Demeter dennis2008 dexter_shen dimitargn dingfei dschafer dst dylanwalker elsantosneto fmccown haroldfigueroa harperf HenryR jblebrun jgrady75 JoeVinegar joydeep klaufer kwgilbertson ladamic macle majik8 marcio mdrosou mezaradu nikitaborisov ohjs opw pigironjoe plotti pms rrbarb Scis0000002 silviumaniu thanaphon thong tnhh turadg w2opma wahlstrom woowey xiaokeeie yannleroux eLearning logics of knowledge Online communities Sonet at FBK

Abstract

Online social networking sites like Orkut, YouTube, and Flickr are among the most popular sites on the Internet. Users of these sites form a social network, which provides a powerful means of sharing, organizing, and finding content and contacts. The popularity of these sites provides an opportunity to study the characteristics of online social network graphs at large scale. Understanding these graphs is important, both to improve current systems and to design new applications of online social networks. This paper presents ...

 

Growth of the flickr social network

  [CiTO]
In Proceedings of the first workshop on Online social networks (2008), pp. 25-30, doi:10.1145/1397735.1397742
posted to evolution flickr growth longitudinal network social time by phauly  on 2009-05-28 23:41:43 **** along with 19 people and 4 groups A_Olympia andreacapocci dartar davidecellai Demiurgo dpdearing dschafer hughesro jabl lukehutton newpoo pms ptony82 pw4ever Roann sannama wisckim wyvern0903 xiaokeeie logics of knowledge PROFCOM Social computing Sonet at FBK

Abstract

Online social networking sites like MySpace, Orkut, and Flickr are among the most popular sites on the Web and continue to experience dramatic growth in their user population. The popularity of these sites offers a unique opportunity to study the dynamics of social networks at scale. Having a proper understanding of how online social networks grow can provide insights into the network structure, allow predictions of future growth, and enable simulation of systems on networks of arbitrary size. However, to date, ...

 

Reputation is in the eye of the beholder: on subjectivity and objectivity of trust statements

  [CiTO]
(June 2006)
posted to no-tag by phauly on 2009-05-28 19:21:59 read along with 1 person dabilock

Abstract

Our contribution wants to encourage a discussion about the very basic assumptions behind the design of social networking systems and suggest that reputation and trust are not objective quantities on which everyone can and should agree but instead reflections of subjective and personal beliefs that might differ among different people. This latter assumption should guide the design of online systems powered by the next generation electronic identities. ...

 

Page-reRank: using trusted links to re-rank authority

  [CiTO]
Web Intelligence, 2005. Proceedings. The 2005 IEEE/WIC/ACM International Conference on In Web Intelligence, 2005. Proceedings. The 2005 IEEE/WIC/ACM International Conference on (2005), pp. 614-617, doi:10.1109/wi.2005.112
posted to no-tag by phauly on 2009-05-28 19:21:33 read along with 2 people ChaTo vtraag

Abstract

Search engines like Google.com use the link structure of the Web to determine whether Web pages are authoritative sources of information. However, the linking mechanism provided by HTML does not allow the Web author to express different types of links, such as positive or negative endorsements of page content. As a consequence, search engine algorithms cannot discriminate between sites that are highly linked and sites that are highly trusted. We demonstrate our claim by running PageRank on a real world data ...

 

Trust Metrics in Recommender Systems

  [CiTO]
Computing with Social Trust In Computing with Social Trust (2009), pp. 259-285, doi:10.1007/978-1-84800-356-9_10
posted to no-tag by phauly  on 2009-05-28 19:20:27 read along with 12 people and 3 groups brusilovsky dungtctin4 guoguibing rocling scj198001 solo1nombre suleehs tgollub tnhh wiizane wuman yza0008228 Resys Social Web social_navigation

Abstract

Recommender Systems based on Collaborative Filtering suggest to users items they might like, such as movies, songs, scientific papers, or jokes. Based on the ratings Based on the ratings provided by users about items, they first find users similar to the users receiving the recommendations and then suggest to her items appreciated in past by those like-minded users. However, given the ratable items are many and the ratings provided by each users only a tiny fraction, the step of finding similar ...

 

Network analysis of collaboration structure in Wikipedia

  [CiTO]
In WWW '09: Proceedings of the 18th international conference on World wide web (2009), pp. 731-740, doi:10.1145/1526709.1526808
posted to analysis collaboration network social social-networks wiki wikipedia by phauly  on 2009-05-27 16:40:42 **** along with 10 people and 1 group AlisonBabeu ChaTo jhon22aq jhyin lidiaoliveira2 nikitaborisov nliu82 sidmitra tnhh w2opma Sonet at FBK

Abstract

In this paper we give models and algorithms to describe and analyze the collaboration among authors of Wikipedia from a network analytical perspective. The edit network encodes who interacts how with whom when editing an article; it significantly extends previous network models that code author communities in Wikipedia. Several characteristics summarizing some aspects of the organization process and allowing the analyst to identify certain types of authors can be obtained from the edit network. Moreover, we propose several indicators characterizing the ...

 

Sharing Nicely: On Shareable Goods and the Emergence of Sharing as a Modality of Economic Production

  [CiTO]
The Yale Law Journal, Vol. , pp-, Vol. 114 (2004), pp. 273-358
posted to altruism blood carpooling distributed economics gift market sharing state by phauly  on 2007-06-10 16:21:00 ***** along with 4 people and 4 groups carlblesius jarkko karimlakhani PhilipEvans Blog_and_Wiki_Research hst-bmi mgh-lcs SRA_at_IRST

Abstract

The paper offers a framework to explain large scale effective practices of sharing private, excludable goods. It starts with case studies of distributed computing and carpooling as motivating problems. It then suggests a definition for “shareable goods” as goods that are lumpy and mid-grained in size, and explains why goods with these characteristics will have systematic overcapacity relative to the requirements of their owners. The paper then uses comparative transaction costs analysis, focused on information characteristics in particular, ...

Note (first note only)

Best paper, ever!

 

Reputation helps solve the `tragedy of the commons'

  [CiTO]
Nature, Vol. 415, No. 6870. (24 January 2002), pp. 424-426, doi:10.1038/415424a
posted to commons cooperation reputation tragedy trust by phauly  on 2007-04-04 16:09:31 **** along with 12 people and 3 groups adriandefroment andreassorge diseberg gennaro greengables harperf lafuente MarioPaolucci matteodellamico tmaillart vtraag yuhc GroupLens LABSS SRA_at_IRST

Abstract

The problem of sustaining a public resource that everybody is free to overuse—the 'tragedy of the commons'1, 2, 3, 4, 5, 6, 7—emerges in many social dilemmas, such as our inability to sustain the global climate. Public goods experiments4, which are used to study this type of problem, usually confirm that the collective benefit will not be produced. Because individuals and countries often participate in several social games simultaneously, the interaction of these games may provide a sophisticated way by which ...

Note (first note only)

that the need to maintain reputation for indirect reciprocity maintains contributions to the public good at an unexpectedly high level. But if rounds of indirect reciprocation are not expected, then contributions to the public good drop quickly to zero. Alternating the games leads to higher profits for all players. As reputation may be a currency that is valid in many social games, our approach could be used to test social dilemmas for their solubility.

 

The Economies of Online Cooperation: Gifts and Public Goods in Cyberspace

  [CiTO]
In Communities in Cyberspace (1999), pp. 220-239
posted to cooperation economy gift public_goods by phauly  on 2007-04-04 16:05:34 ** along with 5 people and 2 groups andrenfreitas dlibrary elenchos harperf mroth GroupLens SRA_at_IRST
 

De-lurking in virtual communities: a social communication network approach to measuring the effects of social and cultural capital

  [CiTO]
System Sciences, 2004. Proceedings of the 37th Annual Hawaii International Conference on (2004), 10 pp.
posted to experiments social-networks social_capital by phauly  on 2007-04-04 16:02:39 *** along with 3 people and 2 groups harperf marcela yteng2 GroupLens SRA_at_IRST

Abstract

The asymmetry of activity in virtual communities is of great interest. While participation in the activities of virtual communities is crucial for a community's survival and development, many people prefer lurking, that is passive attention over active participation. Often, lurkers are the vast majority. There could be many reasons for lurking. Lurking can be measured and perhaps affected by both dispositional and situational variables. This project investigates social and cultural capital, situational antecedents of lurking and de-lurking. We propose a novel ...

 

Public Goods: A Survey of Experimental Research

  [CiTO]
In The Handbook of Experimental Economics (1994)
posted to experiments public_goods survey by phauly  on 2007-04-04 16:02:07 *** along with 2 people and 2 groups ChaTo harperf GroupLens SRA_at_IRST

Abstract

Environments with public goods are a wonderful playground for those interested in delicate experimental problems, serious theoretical challenges, and difficult mechanism design issues. In this chapter I will look at one small but fundamental part of the rapidly expanding experimental research. In Section 1, I describe a very simple public good experiment - what it is, what some theories predict, what usually happens, and why we should care - and then provide a methodological and theoretical background for the rest ...

 

Effects of Positive Reputation Systems,

  [CiTO]
Social Science Research, Vol. 29, No. 2. (June 2000), pp. 188-207, doi:10.1006/ssre.1999.0663
posted to economic recommender_systems by phauly  on 2007-04-04 15:58:30 ** along with 4 people and 2 groups elsantosneto harperf MarioPaolucci yteng2 GroupLens SRA_at_IRST

Abstract

For a given population of potential trustees--actors or objects in whom others may seek to place trust--a positive reputation system is a formalized or institutionalized procedure or process by which a particular positive reputation is acquired or lost. Positive reputation systems are common in modern society. Examples include awarding of certifications, awards, credentials, and positive reviews. This study mathematically derives effects of two general characteristics of such systems--how easy it is to get a reputation and how effective the reputation is ...

Note (first note only)

Abstract. Economic modeling provides a formal mechanism to understand user incentives and behavior in online systems. In this paper we describe the process of building a parameterized economic model of user contributed ratings in an online movie recommender system. We constructed a theoretical model to formalize our initial understanding of the system, and collected survey and behavioral data to calibrate an empirical model. This model explains 34% of the variation in user rating behavior.We found that while economic modeling in this domain requires an initial understanding of user behavior

 

Social Networks and Social Information Filtering on Digg

  [CiTO]
(7 Dec 2006)
posted to collaborative-filtering digg recommender_systems social-networks by phauly  on 2007-02-15 10:28:33 read along with 24 people and 5 groups A_Olympia anansi bbzpda brh68 burt chiachun cimbrone dave_d davidleitner discopatrick dquercia gvanloon imrchen jeffersonramirezc kafka0102 krisl lcoquelle mattlandau merazzle tnhh vegchang wcrosbie yihsuan ypjones Blog_and_Wiki_Research iii_expertise_mining Philosophy_of_Information Semantic-Social-Networks SRA_at_IRST

Abstract

The new social media sites -- blogs, wikis, Flickr and Digg, among others -- underscore the transformation of the Web to a participatory medium in which users are actively creating, evaluating and distributing information. Digg is a social news aggregator which allows users to submit links to, vote on and discuss news stories. Each day Digg selects a handful of stories to feature on its front page. Rather than rely on the opinion of a few editors, Digg aggregates opinions of thousands of its users to decide ...

 

Relational Costs and the Production of Social Capital: Evidence from Carpooling

  [CiTO]
The Economic Journal, Vol. 116, No. 511. (April 2006), pp. 581-604, doi:10.1111/j.1468-0297.2006.01093.x
posted to carpooling social_capital by phauly  on 2007-02-14 15:08:20 **** along with 1 person and 1 group jeznag SRA_at_IRST
 

Knowledge in a Social World

  [CiTO]
(01 February 1999)
posted to no-tag by phauly  on 2006-06-13 22:00:11 **** along with 6 people and 3 groups cirdan heintz livingthingdan qaramazov vallinder vazquezdelmercado folk_epistemology livingthing SRA_at_IRST
 

A Social History of Truth: Civility and Science in Seventeenth-Century England (Science and Its Conceptual Foundations series)

  [CiTO]
(15 November 1995)
posted to relativism trust truth by phauly  on 2006-06-10 18:30:41 ***** along with 5 people and 2 groups cobi eraikhel heintz TomQ ultrascichick folk_epistemology SRA_at_IRST

Abstract

How do we come to trust our knowledge of the world? What are the means by which we distinguish true from false accounts? Why do we credit one observational statement over another? In _A Social History of Truth_, Shapin engages these universal questions through an elegant recreation of a crucial period in the history of early modern science: the social world of gentlemen-philosophers in seventeenth- century England. Steven Shapin paints a vivid picture of the relations between gentlemanly culture and scientific practice. He argues that problems of credibility in ...

 

Open rating systems

  [CiTO]
(2003)
posted to ratings trust by phauly  on 2006-04-26 16:42:00 read along with 2 people and 1 group dartar jrw SRA_at_IRST

Abstract

In the offline world, we look to the people we trust and those they trust for reliable information. In this paper, we present a computational model of this phenomenon and show how it can be used to identify high quality content in an Open Rating System, i.e., a system in which any user can rate content. We present a case study (Epinions.com) of a system based on this model and describe a new platform called PeopleNet for harnessing this phenomenon in an open distributed fashion. ...

 

Trust: ..From Socrates to Spin

  [CiTO]
(05 February 2004)
posted to socrates trust by phauly  on 2005-10-18 16:06:08 ** along with 1 person and 1 group gbilder SRA_at_IRST
 

Gyongyi, Zoltan; Garcia-Molina, Hector; Pedersen, Jan: Combating Web Spam with TrustRank

  [CiTO]
posted to network pagerank reputation spam trust trustrank by phauly  on 2005-10-06 00:45:57 **** along with 1 person and 1 group bragadocchio SRA_at_IRST
 

eMule Credit System

  [CiTO]
posted to emule p2p reputation trust by phauly  on 2005-10-06 00:45:22 **** along with 1 person and 1 group bj SRA_at_IRST

Abstract

The credit system is used to reward users contributing to the network, i.e. uploading to other clients. The strict queue system in eMule is based on the waiting time a user has spent in the queue. The credit system provides a major modifier to this waiting time by taking the upload and download between the two clients into consideration. The more a user uploads to a client the faster he advances in this client's queue. ...

 

Evolution of indirect reciprocity by image scoring.

  [CiTO]
Nature, Vol. 393, No. 6685. (11 June 1998), pp. 573-577, doi:10.1038/31225
posted to evolution reputation trust by phauly  on 2005-10-06 00:40:02 **** along with 8 people and 2 groups adriandefroment gennaro Kovanen MarioPaolucci matteodellamico nellapower PaperCollector vtraag LABSS SRA_at_IRST

Abstract

Darwinian evolution has to provide an explanation for cooperative behaviour. Theories of cooperation are based on kin selection (dependent on genetic relatedness), group selection and reciprocal altruism. The idea of reciprocal altruism usually involves direct reciprocity: repeated encounters between the same individuals allow for the return of an altruistic act by the recipient. Here we present a new theoretical framework, which is based on indirect ...

 

Social Networks and the Web

  [CiTO]
Lecture Notes in Computer Science, Vol. 3034 (April 2004), pp. 1-1
posted to recommender-systems reputation trust by phauly  on 2005-06-09 17:30:30 ** along with 5 people and 2 groups akesha ChaTo danieltruemper mathijs merazzle SRA_at_IRST tomas_and_mathijs
 

Using Trust in Recommender Systems: An Experimental Analysis

  [CiTO]
Lecture Notes in Computer Science, Vol. 2995 (February 2004), pp. 221-235
posted to collaborative-filtering epinions recommender recommender-systems recommender_systems reputation social-networks systems trust trust_metrics by phauly  on 2005-06-09 17:28:51 read along with 5 people and 2 groups balicea chadhogg imrchen mathijs matteodellamico SRA_at_IRST tomas_and_mathijs

Note (first note only)

Abstract Recommender systems (RS) have been used for suggesting items (movies, books, songs, etc.) that users might like. RSs compute a user similarity between users and use it as a weight for the usersrsquo ratings. However they have many weaknesses, such as sparseness, cold start and vulnerability to attacks. We assert that these weaknesses can be alleviated using a Trust-aware system that takes into account the ldquoweb of trustrdquo provided by every user. Specifically, we analyze data from the popular Internet web site

 

Trust-Aware Collaborative Filtering for Recommender Systems

  [CiTO]
Lecture Notes in Computer Science, Vol. 3290 (October 2004), pp. 492-508
posted to collaborative-filtering epinions recommender recommender-systems recommender_systems reputation social-networks systems trust trust_metrics by phauly  on 2005-06-09 17:27:52 read along with 4 people and 2 groups beatty imrchen mathijs suleehs SRA_at_IRST tomas_and_mathijs

Note (first note only)

Abstract Recommender Systems allow people to find the resources they need by making use of the experiences and opinions of their nearest neighbours. Costly annotations by experts are replaced by a distributed process where the users take the initiative. While the collaborative approach enables the collection of a vast amount of data, a new issue arises: the quality assessment. The elicitation of trust values among users, termed ldquoweb of trustrdquo, allows a twofold enhancement of Recommender Systems. Firstly, the filtering process can

 

A collaborative filtering algorithm and evaluation metric that accurately model the user experience

  [CiTO]
In Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval (2004), pp. 329-336, doi:10.1145/1008992.1009050
posted to collaborative-filtering evaluation recommender-systems by phauly  on 2005-04-02 12:10:03 ** along with 7 people and 1 group abellogin bj dquercia JennyClar macle nliu82 rikar SRA_at_IRST

Abstract

Collaborative Filtering (CF) systems have been researched for over a decade as a tool to deal with information overload. At the heart of these systems are the algorithms which generate the predictions and recommendations.In this article we empirically demonstrate that two of the most acclaimed CF recommendation algorithms have flaws that result in a dramatically unacceptable user experience.In response, we introduce a new Belief Distribution Algorithm that overcomes these flaws and provides substantially richer user modeling. The Belief Distribution Algorithm retains ...

 

How Social Structure Improves Distributed Reputation Systems - Three Hypotheses

  [CiTO]
3rd International Workshop on Agents and Peer-to-Peer Computing (AP2PC 2004) (July 2004)
posted to reputation social-networks trust by phauly  on 2005-04-01 15:15:57 ** along with 6 people and 4 groups elsantosneto korakot nazareno rsaarelm vme64 ypjones Blog_and_Wiki_Research Philosophy_of_Information Social Web SRA_at_IRST

Abstract

Reputation systems provide an incentive for cooperation in artificial societies by keeping track of the behavior of autonomous entities. The self-organization of P2P systems demands for the distribution of the reputation system to the autonomous entities themselves. They may cooperate by issuing recommendations of other entities’ trustworthiness. The recipient of a recommendation has to assess its truthfulness and consistency before taking it into account. The current assessment methods are based on plausibility considerations that have several inherent limitations. In our previous ...

 

1984

  [CiTO]
(01 May 1990)
posted to control fiction future past society by phauly  on 2005-03-19 10:44:00 **** along with 2 people and 1 group carsonr jaketheavatar SRA_at_IRST

Abstract

George Orwell's prophetic, nightmarish vision of "Negative Utopia" is timelier than ever-and its warnings more powerful. ...

 

Trust-Aware Collaborative Filtering for Recommender Systems

  [CiTO]
On the Move to Meaningful Internet Systems 2004: CoopIS, DOA, and ODBASE: OTM Confederated International Conferences, CoopIS, DOA, and ODBASE, Vol. 3290 (2004)
posted to collaborative-filtering recommender-systems recommender_systems social-networks trust trust_metrics by phauly  on 2005-03-19 10:26:48 read along with 1 group SRA_at_IRST

Abstract

Recommender Systems allow people to find the resources they need by making use of the experiences and opinions of their nearest neighbours. Costly annotations by experts are replaced by a distributed process where the users take the initiative. While the collaborative approach enables the collection of a vast amount of data, a new issue arises: the quality assessment. The elicitation of trust values among users, termed ldquoweb of trustrdquo, allows a twofold enhancement of Recommender Systems. Firstly, the filtering process can ...

 

Linked

  [CiTO]
(2002)
posted to networks social-networks by phauly  on 2005-03-19 10:18:12 read along with 23 people and 7 groups A_Olympia AdrianMiles alifeleti alikocho bicudo bj breyten ddahlem elijahwright harrykipper indratmo koles korakot lijil m00se mariachiara marymcglo mattybe mercutio netzwerkerin patveck scottmoody sudarshaniisc Blog_and_Wiki_Research complex networks ilps Philosophy_of_Information semantic-multicast-routing SRA_at_IRST The_Truants

Note (first note only)

Very interesting book. Very basic, not a single formula. And with a lot of real life facts such as "on Dec 23, 1932, Erdos entered in the house of his friend blabla and he said bla bla bla ...". Attractive way of getting the reader interested.

 

A Social Network for Societal-Scale Decision-Making Systems

  [CiTO]
(11 December 2004)
posted to social-networks to_be_read by phauly  on 2005-03-19 10:15:21 **** along with 6 people and 3 groups bj dsteinbock korakot ldietz PiersYoung ryan Blog_and_Wiki_Research Philosophy_of_Information SRA_at_IRST

Abstract

In societal-scale decision-making systems the collective is faced with the problem of ensuring that the derived group decision is in accord with the collective's intention. In modern systems, political institutions have instatiated representative forms of decision-making to ensure that every individual in the society has a participatory voice in the decision-making behavior of the whole--even if only indirectly through representation. An agent-based simulation demonstrates that in modern representative systems, as the ratio of representatives increases, there exists an exponential decrease in the ability for the group to behave in ...

 

Trust-Aware Collaborative Filtering for Recommender Systems

  [CiTO]
On the Move to Meaningful Internet Systems 2004: CoopIS, DOA, and ODBASE: OTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2004, Agia Napa, Cyprus, October 25-29, 2004. Proceedings, Part I, Vol. 3290 / 2004 (2004), 492
posted to collaborative-filtering graphs networks ratings recommender-systems reputation trust trust_metrics by phauly  on 2005-01-26 10:49:43 read along with 2 people and 1 group devzero tmahesh SRA_at_IRST

Note (first note only)

I wrote it ;-)

 

Collaboration Analysis in Recommender Systems using Social Networks

  [CiTO]
posted to graphs networks recommender-systems social-networks by phauly  on 2005-01-26 10:44:02 **** along with 15 people and 5 groups aalves anansi bj devzero fergus imrchen korakot KuchMuch mafwood merazzle nazareno netzwerkerin PatrickD rasca sudarshaniisc Blog_and_Wiki_Research complex networks Philosophy_of_Information SRA_at_IRST Wikipedia

Abstract

Many researchers have focussed their efforts in developing collaborative recommender systems. It has been proved that the use of collaboration in such systems improves its performance, but what is not known is how this collaboration is done and what is more important, how it has to be done in order to optimise the information exchange. The collaborative relationships in recommender systems can be represented as a social network. In this paper we propose several measures to analyse collaboration ... ...

 

Structure and evolution of blogspace

  [CiTO]
Commun. ACM, Vol. 47, No. 12. (December 2004), pp. 35-39, doi:10.1145/1035134.1035162
posted to blogs evolution graphs networks by phauly  on 2005-01-26 10:42:19 *** along with 45 people and 12 groups A_Olympia agulli alisonruth AStevenson brusilovsky ChaTo christianholz codex craigtalbert dclay dpeker eegilbert eustache_diemert FG hkl Hoenikker indratmo jdean jenna kate_waxlyrical korakot leei magnusenger MaineC malin McChris meikipp nellapower newpoo Ninsi99 olenka_br PatrickD paulteusner peefeeyatko rangelic rhetoricat rickl RobotAdam sakj sanmay sharonb takeha-e thesis2007 ypjones zqshen Blog_and_Wiki_Research CMU-HCII elearning_research GraphVis OpenArchive Philosophy_of_Information SITCRC social_navigation SRA_at_IRST ubc-ucl Usable_Security Wikipedia

Abstract

A critical look at more than one million bloggers and the individual entries of some 25,000 blogs reveals blogger demographics, friendships, and activity patterns over time. ...

 

Trust in recommender systems

  [CiTO]
In Proceedings of the 10th international conference on Intelligent user interfaces (2005), pp. 167-174, doi:10.1145/1040830.1040870
posted to recommender-systems reputation trust by phauly  on 2005-01-26 10:38:01 **** along with 29 people and 12 groups alhoori amirreza Armon beatty brusilovsky carlblesius chadhogg christiand devzero dungtctin4 ericw fergus fly51fly guoguibing horeis jago jdavar jerry_whu leei macartisan macle maike mathijs mattlandau qili Sberpig suleehs Thrakbad yiah Adaptive-Web Blog_and_Wiki_Research CMU-HCII CompIntelligentSystems hst-bmi mgh-lcs Social Web social_navigation SRA_at_IRST tomas_and_mathijs ubc-ucl Usable_Security

Abstract

Recommender systems have proven to be an important response to the information overload problem, by providing users with more proactive and personalized information services. And collaborative filtering techniques have proven to be an vital component of many such recommender systems as they facilitate the generation of high-quality recom-mendations by leveraging the preferences of communities of similar users. In this paper we suggest that the traditional emphasis on user similarity may be overstated. We argue that additional factors have an important role ...

Note (first note only)

They cite me ;-)

 

The PageRank Citation Ranking: Bringing Order to the Web

  [CiTO]
(1998)
posted to graphs networks social-networks trust_metrics by phauly  on 2004-12-13 09:25:46 along with 130 people and 19 groups _chl A_Olympia aali abellogin achiar adamsi AdrianMiles agebhar1 agulli akkun_choi akrowne alhoori anansi ariels arkang avivagabriel beefer BenediktM BernhardRieder bkirman borkurdotnet bragadocchio brightbyte camster carlblesius chadhogg ChaTo chirayu_kong clickstone clopes2010 compops craigtalbert cybrpunk damaru davidecellai Demeter devzero dianavdham dmeister domakesaythink donade dsteinbock dungtctin4 eabait fabi42 Faerk federicopaoloni fer fergus fiacobelli fordparsons gane5h gena gicoupar gnewton grazewind griota haroldfigueroa hathai hazen Hoenikker hukkinen ianturton inbeom INK-SSCI-SCI jaspervoskuilen jerry_whu jgronski jiny jmartinezot jsanpedro julianyl kah kaz24 ketchum korakot krisl lar ldfu ldietz leepro lionel LMarieChap lschiff lumumba macartisan macle mahendra_kutare MaineC makrehchi mapio MariaChiaraP matteodellamico merazzle michaelmampaey mikeliddell mpotamias mrt2k9 mzygmunt nikitaborisov nkorf pdlug pprett ptony82 rahul rhc riadlem rozim rumig sakj scholze sevo soloman1124 sp9830 sudarshaniisc sudhanshu_goswami taho thienanh thijswesterveld tnhh tolosoft toomash twetering udamahan ulmer vlee wcrosbie xxc ypjones zibuyu ADMiRes Blog_and_Wiki_Research CISTI-Research Cloud Computing Papers CoP_CMS CSCW dbk-lab dopsy hst-bmi INK-SSCI-SCI@CiteuLike.org logics of knowledge mgh-lcs Philosophy_of_Information Semantic-Social-Networks SRA_at_IRST SRL Ubicomp VirtualPatient Wikipedia

Abstract

The importance of a Web page is an inherently subjective matter, which depends on the readers interests, knowledge and attitudes. But there is still much that can be said objectively about the relative importance of Web pages. This paper describes PageRank, a method for rating Web pages objectively and mechanically, effectively measuring the human interest and attention devoted to them. We compare PageRank to an idealized random Web surfer. We show how to efficiently compute PageRank for large... ...

Note (first note only)

The paper introducing PageRank, the algo behind Google. A simple yet incredibly powerful idea!

 

Propagation of Trust and Distrust

  [CiTO]
(2004)
posted to attacks distrust graphs trust by phauly  on 2004-12-13 09:24:49 along with 23 people and 6 groups anansi chadhogg ChaTo dartar devzero donade ebabarczy gane5h JmSeigneur jrw kingsunshine korakot mariachiara mathijs matteodellamico PatrickD RobotAdam schaal sengcy sree_nilakanta vlee wasp ypjones Blog_and_Wiki_Research Philosophy_of_Information Semantic-Social-Networks SRA_at_IRST tomas_and_mathijs Wikipedia

Abstract

A network of people connected by directed ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most successful e-commerce and recommendation systems. In eBay, such a model of trust has significant influence on the price an item may command. In Epinions (epinions.com), conclusions drawn from the web of trust are linked to many behaviors of the system, including decisions on items to which each user is exposed. We develop a... ...

Note (first note only)

Maybe the only paper considering distrust. Very interesting early work.

 

Open Rating Systems

  [CiTO]
posted to epinions ratings recommender-systems recommender_systems trust by phauly  on 2004-12-13 09:23:14 read along with 16 people and 9 groups A_Olympia anansi carlblesius ChaTo corcoran devzero jrw korakot lionel mattlandau myudelson netzwerkerin PatrickD pdlug spinster suleehs Adaptive-Web Blog_and_Wiki_Research ComplexAdaptiveSystems hst-bmi mgh-lcs Philosophy_of_Information SRA_at_IRST what_is_a_library Wikipedia

Abstract

In the offline world, we look to the people we trust and those they trust for reliable information. In this paper, we present a computational model of this phenomenon and show how it can be used to identify high quality content in an Open Rating System, i.e., a system in which any user can rate content. We present a case study (Epinions.com) of a system based on this model and describe a new platform called PeopleNet for harnessing this phenomenon in an open distributed fashion. ...

Note (first note only)

Great article, analyzing also the trust-aware part of Epinions.com.

 

Referral Web: Combining Social Networks and Collaborative Filtering

  [CiTO]
posted to cf collaborative-filtering graphs networks social-networks by phauly  on 2004-12-07 00:06:49 along with 49 people and 19 groups ak amirmz balicea camster casst122 craigtalbert devzero dfrankow ejetstream ethomsen fergus fly51fly freecia gagliol garyfeng hsiaowei ianturton JeffreyPalmer JimFolk josepe JoyMak korakot ldietz leei lior macartisan magnusenger mattlandau miriam mjchernyk mpotamias palakorn PatrickD paulomagalhaes rabourn rbudiu rickl scottmoody shilad skirsch sourada stacyall tglaisyer UnodeWaal vaasu warters wcrosbie xxc ypjones Blog_and_Wiki_Research CoP_CMS CSU_School_of_Education Drexel-eVoting Drexel-HCI ETEC533 GroupLens Netmob OpenArchive P2P Philosophy_of_Information ReadingLab semantic-multicast-routing Social Web SRA_at_IRST ubc-ucl Usable_Security Web2-0_Education Wikipedia
 

A distributed trust model

  [CiTO]
In Proceedings of the 1997 workshop on New security paradigms (1997), pp. 48-60, doi:10.1145/283699.283739
posted to distributed trust trust_model by phauly  on 2004-12-04 20:37:56 along with 11 people and 2 groups avaret chadhogg devzero dokooh farez JmSeigneur kingsunshine krzstefaniak mathijs nabeelah sadia_saleem SRA_at_IRST tomas_and_mathijs

Abstract

An abstract is not available. ...

Note (first note only)

I should re-read it because i forgot it and at that time there was no citeulike!! ;-)

 

Pair Correlations in Scale-Free Networks

  [CiTO]
(3 August 2004)
posted to to_be_read by phauly  on 2004-12-04 20:36:29 along with 3 people and 3 groups devzero korakot nettraq Blog_and_Wiki_Research Philosophy_of_Information SRA_at_IRST

Abstract

Correlation between nodes is found to be a common and important property in many complex networks. Here we investigate degree correlations of the Barabasi-Albert (BA) Scale-Free model with both analytical results and simulations, and find two neighboring regions, a disassortative one for low degrees and a neutral one for high degrees. The average degree of the neighbors of a randomly picked node is expected to diverge in the limit of infinite network size. As an generalization of the concept of correlation, we also study the correlations of other ...

Note (first note only)

TO_BE_READ

 

Centro Per La Ricerca

  [CiTO]
posted to attacks graphs networks trust trust_metrics by phauly  on 2004-11-15 10:49:02 along with 1 group SRA_at_IRST

Note (first note only)

My PhD proposal. Best paper ever! ;-)

Trust-aware decentralized Recommender systems

 

Spreading Activation Models for Trust Propagation

  [CiTO]
posted to attack-resistance attacks graphs networks trust trust_metrics by phauly  on 2004-11-15 10:45:25 along with 5 people and 1 group chadhogg kingsunshine lbjay nirsoffer vme64 SRA_at_IRST

Note (first note only)

Great paper! It proposes Appleseed, a great trust metric and compares it with Advogato. Attention is given to attacks and attack-resistance. Great paper!

 

Attack-resistant trust metrics for public key certification

  [CiTO]
posted to attack-resistance attacks metrics trust trust_metrics by phauly  on 2004-11-15 10:31:41 along with 4 people and 3 groups devzero JmSeigneur korakot mercutio Blog_and_Wiki_Research Philosophy_of_Information SRA_at_IRST

Note (first note only)

First paper dealing with trust metrics. Levien created http://advogato.org in order to test his hypothesis. Check the advogato trust metric at http://www.advogato.org/trust-metric.html

 

The structure and function of complex networks

  [CiTO]
(25 Mar 2003)
posted to graphs networks by phauly  on 2004-11-10 17:13:30 along with 100 people and 16 groups aalves AbnerCYH adriandefroment Adso aftersox ajholanda andpapad AnneB anon_pl apicu apwesolowski arkas azygmunt Bolozna brewbooks carolaccs ChaTo chirayu_kong compops cstewart1968 cwoodward daniel51 danieltruemper ddahlem diamantis dpf eduberrocal erashidi esayre ffloeck fukken gagliol gane5h gonz hmedal hugo_zara imouthesmp jaspervoskuilen jmarcelino juhop karamshuk karbak kimbie korakot Kovanen kray kronglc kshundyak kubyaddi Kwisatz lawraga ldietz lyongu makrehchi michellewang mko momonga mpotamias mrm mylit nailest netzwerkerin newpoo Nichtich nkorf normaali operon orahcio pdlug ptony82 rahul rajs2010 ransombriggs rmj001 rmkujala rrbarb salvoscellato scottmoody senseable-urb Sergey_gerbek shashikant skjq snuppepuppan soramame_0518 StephanMatthiesen studentx sudarshaniisc sydeulissie thecolourblue theus trunov tuck vtraag wwweagle xleonzhao xxc yish ypjones zibuyu zlm Aalto University - Complex Networks AGH-IISG Blog_and_Wiki_Research complex networks CSBBGraphTheory dtl eni IS-Lab mathgamespatterns Philosophy_of_Information semantic-multicast-routing Semantic-Social-Networks SRA_at_IRST SRL vds-arg Wikipedia

Abstract

Inspired by empirical studies of networked systems such as the Internet, social networks, and biological networks, researchers have in recent years developed a variety of techniques and models to help us understand or predict the behavior of these systems. Here we review developments in this field, including such concepts as the small-world effect, degree distributions, clustering, network correlations, random graph models, models of network growth and preferential attachment, and dynamical processes taking place on networks. ...

Note (first note only)

WOW. long and deep review. more than 40 pages and more than 400 references.

 

Finding and evaluating community structure in networks

  [CiTO]
Physical Review E, Vol. 69, No. 2. (11 Aug 2003), 026113, doi:10.1103/physreve.69.026113
posted to graphs networks by phauly  on 2004-11-10 17:09:17 Average rating 4.0 along with 73 people and 12 groups abonchen adriandefroment aftersox almadana amirreza andreacapocci AnneB apwesolowski arjun_citeulike azygmunt bigbossman bj bmemon breyten chirayu_kong cimbrone compops dakelley danielsussman davidbindel dbatorski Demiurgo dpf edws entropy eyliu fukken ganden guara Guff32 hamasaki HenryR jasonn jmarcelino jmchauvet josepe julianyl kimbie korakot Kovanen kshameer kubyaddi ldietz lfriedl lijiankou lptolik LucaPappalardoPhD lukehutton makrehchi mpotamias neils netzwerkerin nicolarebagliati nojhan orahcio Peterfine poirel qiaona RayRa rumig salvoscellato schaal senseable-urb shelleylyn shivaram sudarshaniisc swp09 talayehaledavood theus w2opma winterstream wwweagle WXuan AGH-IISG aLifeComplexSys Blog_and_Wiki_Research complex networks ComplexAdaptiveSystems EvolutionaryComputation ilps kdl Metaheuristics Optimization Philosophy_of_Information SRA_at_IRST

Abstract

We propose and study a set of algorithms for discovering community structure in networks -- natural divisions of network nodes into densely connected subgroups. Our algorithms all share two definitive features: first, they involve iterative removal of edges from the network to split it into communities, the edges removed being identified using one of a number of possible "betweenness" measures, and second, these measures are, crucially, recalculated after each removal. We also propose a measure for the strength of the community structure found by our algorithms, which gives ...

Note (first note only)

TO BE READ

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